SC2506-680 Equivalent & Substitute Parts

Part Overview

The SC2506-680 is a 68 µH unshielded inductor manufactured by Signal Transformer, rated for 480 mA continuous current with a maximum DC resistance of 1.3 Ohm. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing design support and production continuity. The part is mounted as a surface mount device in a nonstandard package measuring 9.25mm × 7.87mm with a seated height of 1.65mm.

Substiute Parts

SC2506-680

Signal TransformerIn Stock: 1029SC2506-680 Datasheet

Current PartRFQ

UP1B-680-R

Eaton - Electronics DivisionIn Stock: 3137UP1B-680-R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SC2506-680 is based on the following critical parameters:

• Inductance Value: 68 µH nominal with ±20% tolerance
• Current Rating: Minimum 480 mA continuous current capability
• DC Resistance: Maximum 1.3 Ohm to maintain circuit performance
• Mounting Type: Surface mount configuration
• Shielding Configuration: Unshielded topology
• Test Frequency: 100 kHz inductance measurement standard
• Compliance: ROHS3 compliance and MSL 1 rating required

The substitute part UP1B-680-R meets these criteria with equivalent inductance, higher current rating capability, and active product status, making it suitable for direct replacement in applications where the SC2506-680 is no longer available.

Parameter Comparison

Engineering Selection Recommendations

The UP1B-680-R from Eaton Electronics Division is the designated substitute for the obsolete SC2506-680. This substitution is supported by:

• Identical inductance value and tolerance specification
• Higher current rating (580 mA vs. 480 mA) providing design margin
• Lower DC resistance (732 mOhm vs. 1.3 Ohm maximum) improving efficiency
• Higher saturation current (670 mA vs. 400 mA) extending operational headroom
• Active product status ensuring long-term availability and supply chain continuity
• Equivalent compliance certifications (ROHS3, MSL 1)
• Matching surface mount configuration and unshielded topology

The UP1B-680-R is packaged in Tape & Reel format with improved physical dimensions (8.89mm × 6.10mm footprint, 5.00mm seated height) compared to the original nonstandard package.

Frequently Asked Questions (FAQ)

Q: Can UP1B-680-R directly replace SC2506-680 in existing designs?

A: Yes. Both parts share identical inductance values, tolerance specifications, and unshielded surface mount configuration. The substitute offers superior electrical performance with higher current and saturation ratings and lower DC resistance.

Q: What are the physical dimension differences?

A: SC2506-680 measures 9.25mm × 7.87mm with 1.65mm seated height. UP1B-680-R measures 8.89mm × 6.10mm with 5.00mm seated height. PCB layout verification is required to confirm mechanical compatibility.

Q: Are compliance certifications equivalent?

A: Both parts are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating. REACH status is unaffected for both components.

Q: What is the difference in DC resistance impact?

A: UP1B-680-R has 732 mOhm maximum DCR compared to SC2506-680 at 1.3 Ohm maximum. This 44% reduction in resistance decreases power dissipation and heat generation in the inductor.

Q: Is the higher current rating of UP1B-680-R a concern?

A: No. Higher current ratings indicate greater design margin and do not negatively impact circuit operation. The 580 mA rating of UP1B-680-R exceeds the 480 mA requirement of the original design.

Q: What packaging format is UP1B-680-R supplied in?

A: UP1B-680-R is supplied in Tape & Reel (TR) format, standard for automated assembly processes. SC2506-680 packaging format was not specified in available data.